Collapsible sawhorse bracket assembly



Feb. 26, 1963 c. o. LARSON 3,078,956

COLLAPSIBLE SAWHORSE BRACKET ASSEMBLY File ad April 4, 1962 2Sheets-Sheet 1 INVEN TOR. Charles 0. Larson BY WW/5M, 7mm

Feb. 26, 1963 c. o. LARSON COLLAPSIBLE SAWHORSE BRACKET ASSEMBLY 2Sheets-Sheet 2 Filed April 4, 1962 INVENTOR. Charles 0. Larson UnitedStates Patent Ofitice 3,d78,956 Patented Feb. 26, 1963' 3,li78,95dCSLLAPSIBLE SAWHRE ERAQKET ASfl-EMBLY Charles '8. Larson, dteriing, Elk,assignor to (Chas. U. Larson 630., Sterling, Jill., a corporation ofIllinois Filed Apr. 4, E62, Ser. No. 135,678 6 filaims. (Cl. 182-225)This invention relates to sawhorses, barriers, trestles and the like,and particularly to improved bracket assemblies for making collapsblesawhorses and the like.

Although sawhorses are fundamentally used for carpentry work, they alsoare widely used as barriers, obstacius, temporary fences and the like,and many of these additional uses are temporary in the sense that thesaW horses may be used only for a short period of time, such forexample, as a temporary barricade along a construction site, after whichthe sawhorses are either stored or transported to another place of use.Accordingly, it is desirable that the sawhorses and particularly thebracket assembly thereof be constructed and adapted to permit the legsof the sawhorses to be folded or collapsed between periods of use andduring transportation thereof so that the sawhorses will occupy theleast possible space. It furthermore is desirable that the sawhorses befoldable or collapsible with a minimum expenditure of energy and timeand also that the sawhorses be again readily erected when a demandtherefor arises. Upon erection, the sawhorses must be rigid and strong.

Accordingly, it is an important object of the present invention toprovide an improved sawhorse bracket assembly which can be quicklyassembled to a crosspiece and an associated pair of converging legs toprovide a sawhorse structure, and which can be easily and quickly foldedor collapsed for transportation and storage thereor.

Another object of the invention is to provide an improved sawhorsebracket assembly of the type set forth wherein the legs of the sawhorseare movable between an operative position wherein the legs support anassociated end of the crosspiece, and a folded or collapsed position,wherein the legs are disposed toward each other, the movement of thelegs between the operative position and the folded position thereofbeing accomplished without the use of any tools whatsoever.

Yet another object of the invention is to provide an improved sawhorsebracket assembly the type set forth wherein lock mechanism is providedthat is operated under the action of gravity for holding the legs in theoperative position thereof to provide a strong and rigid sawhorse.

A further object of the invention is to provide an improved sawhorsebracket assembly of the type set forth wherein the legs can be movedbetween a spread opera tive position and a folded collapsed positioneasily and quickly, the sawhorse bracket assembly being simple andeconomically to manufacture and install.

These and other objects and advantages of the invention will be betterunderstood from the following description when taken in conjunction withthe accompanying drawings. In the drawings, wherein like referencenumerals have been utilized to designate like parts throughout:

FIGURE 1 is a perspective View of a sawhorse constructed utilizing thebracket assemblies of the present invention, two of the bracketassemblies being utilized to secure one set of legs in convergingrelationship with each other and one end of the crosspiece and two ofthe bracket assemblies being utilized to secure a second set of legs inconverging relationship with each other and the other end of thecrosspiece;

FIG. 2 is an enlarged end view of the sawhorse of FIG. 1, the partsbeing shown in the position assumed when the sawhorse legs are in thefolded position thereof;

FIG. 3 is an end view similar to FIG. 2 showing the parts of thesawhorse assembly in the operative position thereof, wherein thesawhorse legs diverge outward ly and downwardly from the crosspiece;

FIG. 4 is a further enlarged and exploded view of the parts of twobracket assemblies utilized to secure a pair of sawhorse legs to thesawhorse crosspiece; and

PEG. 5 is a fragmentary view of an end of the sawhorse assembly with theparts in the inverted position in which they are placed more easily tomove the legs and associated parts from the operative position to thefolded position thereof.

Referring to the drawings, and particularly to FIG. 1, there is shown asawhorse, generally designated by the numeral it), which has beenassembled utilizing four of the bracket assemblies made in accordancewith and embodying the principles of the present invention, the bracketassemblies having been generally designated by the numeral 26. Moreparticularly, the sawhorse 10 includes four legs 12. arranged in pairsat opposite ends of a crosspiece 14-, the upper ends of the legs 12converging toward each other and toward the adjacent endof thecrosspiece 14. The bracket assemblies 2%) at each end of the sawhorse 19are identical, and accordingly, only one set of parts will be describedin detail, like reference numerals being applied where appropriate tolike parts in the other bracket assemblies.

Each of the sawhorse bracket assemblies 29 includes a pair of separate,independent and identical brackets 22, each of the brackets 22 includinga main wall 24 which is substantially flat and planar, a side flange 26formed integral therewith and extending the length of the outer edgethereof, and a top flange 28 formed integral with the main wall 24 andextending the length of the top edge thereof. More specifically, themain plate 24 has.

a bottom edge 36 and an inner side edge 32 which are disposedsubstantially perpendicular to each other. The side edge 32 terminatesat a point approximately halfway up the main wall 24 and joins aninclined abutment edge 34 which extends upwardly to a top edge 38 at thejunction of the main Wall 24 and the top flange 28, the top edge 36being parallel to the bottom edge 30 The remaining edge 38 of the mainwall 24 is at the junction thereof with the side flange 26, the sideedge 38 being parallel to the side edge 32 and substantiallyperpendicular to the bottom edge 34 and the top edge 36. There furtheris formed in the portion of the main plate 34 adjacent to the sideflange 26 a plurality of circular holes 49 adapted to receivetherethrough fasteners, such as the screws 43, for mounting the bracket22 upon the upper end of the associated leg 12, the main plate 24 beingadapted to lie against one edge of the associated leg 12, the sideflange 26 being adapted to engage the outer face of the associated leg12, and the top flange 28 being adapted to engage the top end of theassociated leg 12; in addition, a square opening 42 is provided in themain plate 24 for the reception of a carriage bolt therein if desired.

In order pivotally to interconnect a pair of the side plates 22, as willbe explained more fully hereinafter, the main plate 24 is provided witha pivot aperture 44 which is circular in shape and is disposedsubstantially midway between the bottom edge 30 and the top edge 36 andspaced inwardly a short distance from the inner side edge $2. There alsois provided an elongated guide slot 46 in the main plate 24 adjacent tothe edge 34 thereof, the longitudinal axis of the guide slot 46 beingdisposed substantially parallel to the abutment edge 34. There furtheris provided a generally L-shaped slot 50 in the main wall 24 including afirst arm 52 and a second arm 54, the first arm 52 being arranged withthe longitudinal axis thereof in alignment with the pivot aperture 44and disposed therebelow toward the bottom edge 30, and the second arm 54extending from the upper end of the arm 52 with the longitudinal axisthereof substantially perpendicular to the longitudinal axis of the arm52 and extending toward the side flange 26, see FIG. 3 particularly. Theoverlapping portions of the arms 52 are arranged substantiallyvertically when the parts are in the operative position illustrated inFIG. 3.

In order to attach the crosspiese 14 to the brackets 22, each pair ofthe brackets 22 is provided with an L-Shaped strap generally designatedby the numeral 60 and including a first flange 62 adapted to be fixedlysecured to the underside of the crosspiece 14 and a second flange 64arranged substantially perpendicular to the first flange 62 and whenmounted extending away from the underside of the crosspiece 14andsubstantially normal to the longitudinal axis thereof, a pair ofreinforcing embossments 65 being provided at the junction of the flanges62 and 64. More particularly, the first flange 62 is provided with a.plurality. of holes 66 receiving therethrough suitable fasteners, suchas the screws 43,'to mount the strap 60 upon the underside of thecrosspiece 14. The second flange 64 has a guide aperture 68 thereinsubstantially centrally thereof and adapted to be aligned with the guideslots 46 in the associated brackets 22.

In the bracket assembly 20, the brackets 22 and the strap 60 arearranged with the main plates 24 and the second flange 64 in mutuallyoverlapping relationship and aguide. pin generally designated by thenumeral 72 is provided including a shank 74 extending through thealigned guide aperture 68 and the guide slots 46, and an @nlarged head76 engaging the outer surface of the strap flange 64. The other, end ofthe shank 74 carries a washer Z8 held thereon by peening over the outerend of the shank 74, whereby the main walls 24 and. the flange 64 areheld in assembled relationshipv between the head 76 and the washer 78.The guide pin 72 moves along the guide slots 46 as the parts are movedbetween the folded position and the operative position thereof, theguide pin 72being in the lower ends of the guide slots 46 when the partsare in the folded position thereof illustrated in the guide pin 72beingin the upper ends of the guide slots 46 when the parts are in theoperative position thereof illustrated in FIG. 3.

The brackets 22 are further pivotally interconnected by means of a pivotpin 55 including a shank 56 extending through the aligned pivotapertures 44 in the overlapping portions of the main walls 24, andincluding an enlarged head 57 engaging the outer surface of the adjacentmain wall 24. The other end of the shank 56 carries a washer 58 heldthereon by peening over the outer end of the shank 56, whereby the mainwalls 24 are held in assembled pivotal relationship between the head 57and the washer 58, this construction serving pivotally to mount the legs12 with the respect to each other and upon the associated end of thecrosspiece 14 through the strap 60.

There also is provided a lock pin which extends through the L-shapedslots 59 in the brackets 22, the lock pin being generally designated bythe numeral 80 and including a shank 82 extending through alignedportions of the slots 50 and an enlarged head 84 engaging the outersurface of the adjacent main wall 24, the other end of the shank 82carrying thereon a washer 86 bearing against the outer surface of themain wall 24 of the innermost bracket 22 and held thereagainst bypeening over: the outer end ofthe shank 82. The pivot pin 80 is free tomove within the slots 50 between a non-locking or folded positionillustrated in FIG. 2, and a locking or extended position illustrated inFIG. 3, the non-locking position of FIG. 2 corresponding to a conditionwherein the legs 12 of the sawhorse 10 are folded toward each other, andthe locking position of FIG. 3 corresponding to a condition wherein thelegs 12 diverge outwardly and downwardly from the crosspiece 14.

In mounting the bracket assembly 20 upon the legs 12 and the crosspiece14, the bracket assembly 20 may have the parts thereof pre-assembledbefore attachment of the brackets 22 to the legs 12 and beforeattachment of the strap 60 to the crosspiece 14, or alternatively, thebrackets 22 may be assembled on the associated legs 12 and the strap 63mounted on the crosspiece 14 after which the brackets 22 and the strap60 are interconnected by the pivot pin 55, the guide pin 72 and the lockpin and their associated parts.

Once the parts are assembled as illustrated in the drawin s, the lockpin 86 serves to hold the legs 12 in the outer supporting and operativeposition thereof, the lock pin 89 being disposed in the lower ends ofthe aligned slots 59 and particularly the lower ends of the arms 52thereof. Any effort to move the legs 12 toward each other will beprevented since the edges of the slots 50, and particularly the edges ofthe arms 52 thereof, will engage the lock pin 80 and prevent suchmovement of the legs 12, whereby the lock pin 80 serves-to hold theparts of the sawhorse assembly 26 in the erected and operative positionthereof illustrated in FIG. 3.

When it is desired to fold the legs 12 toward each other to the positionillustrated in FIG. 2, this can readily be accomplished by first placingthe sawhorse 10 in the inverted position diagrammatically illustrated inFIG. 5; the mere placing of the sawhorse 10 in the position of FIG. 5will cause the lock pin 80 to move under the urging of gravity along thealigned slots 58, and particularly along the arms 52 thereof, to thealigned portions nearest the pivot pin 55 and in horizontal alignmentwith the arms 54. The outer ends of the legs 12 can now be moved towardeach other whereby to move the pivot pin 8t into the slot arms 54 untilthe parts reach the position illustrated in FiG. 2. When it is desiredagain to spread the legs 12 to place the parts in the operativeposition, it is necessary only to place the sawhorse 10 in the uprightposition thereof, and to move the outer endsof the legs 12 away fromeach other, whereby to cause the lock pin 8% to move along the slot arms54 toward the junction thereof with the slot arms 52; and when the pivotpin 80 arrives in the slot arms 52, the slot arms 52 will be disposedvertically and in alignment with each other, whereby the lock pin 3b canreadily fall downwardly under the urging of gravity to the lockingposition illustrated in FIG. 3.

During the above described movement of the various parts, the brackets22 are pivoting about the pivot pin 55 and the guide pin 72 moves alongthe guide slots 46 to provide a movable interconnection between thestrap 60 and the brackets 22. More particularly, when the legs 12 are inthe folded position thereof illustrated in FIG. 2, the guide pin 72 isin the lower ends of the guide slots 46; and when the legs 12 are in thediverging and operative position thereof illustrated in FIG. 3, theguide pin 72 is in the upper ends of the guide slots 46, the pin 72moving along the guide slots 46 as the parts are moved between thepositions illustrated in FIGS. 2 and 3.

The strap 60 also has an abutment flange 70 thereon struck from theflange 64 and inclined in a manner such that it contacts and abuts theabutment edge 34 of the bracket 22 disposed outwardly toward the flange64, the flange 70 contacting the edge 34 serving to limit the distancethat the brackets 22 and the connected legs 12 may be pivoted outwardlyaway from each other about the pivot pin 55.

Accordingly, it will be seen that the legs 12 and the various parts ofthe bracket asembly 20 can be moved between the operative position andthe folded position thereof without the use of any tools and quickly andconveniently by simply turning the sawhorse upside down and then rightside up, or vice versa, as required.

It will be seen that there has been provided an improved collapsiblesawhorse bracket assembly which fulfills all of the objects andadvantages set forth above. Although what is now considered to be thepreferred embodiment of the invention has been shown in the drawings anddescribed for purposes of illustration, it is to be understood thatvarious changes and modifications can be made therein and it is intendedto cover by the appended claims all such changes and modifications thatfall within the spirit and scope of the invention.

What is claimed is:

1. A collapisible sawhorse bracket assembly for interconnecting acrosspiece and a pair of legs in converging relationship with each otherand to the crosspiece, comprising a pair of separate independentbrackets, each bracket including a main wall adapted to be fixedly scured to one edge of the associated leg at one end thereof, meansinterconnecting the crosspiece and said brackets, said brackets beingmutually overlapping and having aligned pivot apertures the-rethrough, apivot pin disposed in said aligned pivot apertures and pivotallyinterconnecting said brackets to provide an axis for pivoting the legsbetween a folded position wherein the other ends thereof are adjacent toeach other and an operative position wherein the other ends thereof arespaced apart, each of said brackets having in the main wall thereof an L-shaped slot including first and second arms, the first arm of each ofsaid L-shaped slots being arranged with the longitudinal axis thereof inalignment with said pivot apertures and in alignment with the first armof the other L-shaped slot when the legs are in the operative positionthereof, the second arm of each of said L-shaped slots being arranged atthe end of the associated first arm thereof disposed toward thecrosspiece and extending therefrom toward the associated leg, and a lockpin disposed in said slots and movable therealong in the alignedportions thereof between a locking positionand a non-locking position asthe legs move between the operative and folded positions thereof, saidlock pin in said locking position being disposed at the ends of thealigned first arms disposed away from the crosspiece with the legs inthe operative position thereof and supporting the crosspiece thereupon,said lock pin in said non-locking position being disposed in alignedportions of said second arms with the legs in the folded positionthereof.

2. A collapsible sawhorse bracket assembly for interconnecting acrosspiece and a pair of legs in converging relationship with each otherand to the crosspiece, comprising a pair of separate independentbrackets, each bracket including a main wall adapted to be fixedlysecured to one edge of the associated leg at one end thereof meansinterconnecting the crosspiece and said brackets, said brackets beingmutually overlapping and having aligned pivot apertures therethrough, apivot pin disposed in said aligned pivot apertures and pivotallyinterconnecting said brackets to provide an axis for pivoting the legsbetween a folded position wherein the other ends thereof are adjacent toeach other and an operative position wherein the other ends thereof arespaced apart, each of said brackets in the main wall thereof having anL-shaped slot disposed on the side of said pivot apertures opposite thecrosspiece and each including first and second arms, the first arm ofeach of the said L-shaped slots being arranged with the longitudinalaxis thereof in alignment with said pivot apertures and extendingtherefrom away from the crosspiece and in alignment with the first armof the other L-shaped slot when the legs are in the operative positionthereof, the second arm of each of said L- shaped slots being arrangedat the end of the associated first arm thereof disposed toward thecrosspiece and extending therefrom toward the associated leg, and a lockpin disposed in said slots and movable therealong in the alignedportions thereof between a locking position and a non-locking positionas the legs move between the operative and folded positions thereof,said lock pin in said locking position being disposed at the ends of thealigned first arms disposed away from the crosspiece with the legs inthe operative position thereof and supporting the crosspiece thereupon,said lock pin in said non-locking position being disposed in alignedportions of said second arms with the legs in the folded positionthereof, said lock pin being movable from said locking position to saidnonlocking position under the urging of gravity when said assembly isarranged with the legs extending upwardly from the crosspiece and saidlock pin being movable from said non-locking position to said lockingposition under the urging of gravity when the legs diverge outwardly anddownwardly from the crosspiece.

3. A collapsible sawhorse bracket assembly for interconnecting acrosspiece and a pair of legs in converging relationship with each otherand to the crosspiece, comprising a pair of separate independentbrackets, each bracket including a main wall adapted to be fixedly secured to one edge of the associated leg at one end thereof and a sideflange formed integral with said main wall and disposed substantiallyperpendicular thereto and along the outer face of the associated leg atthe one end thereof and a top flange formed integral with said main walland disposed substantially perpendicular thereto and along the top edgeof the associated leg at the one end thereof, means interconnecting thecrosspiece and said brackets, said brackets being mutually overlappingand having aligned pivot apertures therethrough, a pivot pin disposed insaid aligned pivot apertures and pivotally interconnecting said bracketsto provide an axis for pivoting the legs between a folded positionwherein the other ends thereof are adjacent to each other and anoperative position wherein the other ends thereof are spaced apart, eachof said brackets having in the main wall thereof an L-shaped slotincluding first and second arms, the first arm of each of said L-shapedslots being arranged with the longitudinal axis thereof in alignmentwith said pivot apertures and in alignment with the first arm of theother L-shaped slot when the legs are in the operative position thereof,the second arm of each of said L-shaped slots being arranged at the endof the associated first arm thereof disposed toward the crosspiece andextending therefrom toward the associated leg, and a lock pin dis posedin said slots and movable therealong in the aligned portions thereofbetween a locking position and a nonlocking position as the legs movebetween the operative and folded positions thereof, said lock pin insaid locking position being disposed at the ends of the aligned firstarms disposed away from the crosspiece with the legs inthe operativeposition thereof and supporting the crosspiece thereupon, said lock pinin said non-locking position being disposed in alignedportions of saidsecond arms with the legs in the folded position thereof.

4. A collapsible sawhorse bracket assembly for interconnecting acrosspiece and a pair of legs in converging relationship with each otherand to the crosspiece, com prising a pair of separate independentbrackets, each bracket including a main wall adapted to be fixedlysecured to one edge of the associated leg at one end thereof, anL-shaped strap including a first flange adapted to be fixedly secured tothe underside of the crosspiece and a second flange perpendicular tosaid first flange and extending away from the underside of thecrosspiece and connected to said brackets for interconnecting thecrosspiece and said brackets, said brackets being mutually overlappingand having aligned pivot apertures therethrongh, a pivot pin disposed insaid aligned pivot apertures and pivotally interconnecting said bracketsto provide an axis for pivoting the legs betweena folded positionwherein the other ends thereof are adjacent to each other and anoperative position wherein the other ends thereof are spaced apart, eachof said brackets having in the main wall thereof an L-shaped slotincluding first and second arms, the first arm of each of; said L-shapedslots being arranged with the longitudinal axis thereof in alignmentwith said pivot apertures and in alignment with the first arm of theother L-shaped slot when the legs are in the operative position thereof,the second arm of each of said L-shaped slots being arranged at the endof the gssociated first arm thereof disposed toward the crosspiece andextending therefrom toward the associated leg, and a lock pin disposed,in said slots and movable therealong in the aligned portions thereofbetween a locking'pesition and a non-locking position as the legs movebetween the operative and folded positions thereof, said lock pin insaid locking position being disposed at the ends. of the aligned firstarms disposed away from the crosspiece with the legs in the operativeposition thereof and supporting the crosspiece thereupon, said lock pinin said non-locking position being disposed in aligned portions of saidsecond arms with the legs in the folded position thereof.

5. A collapsible sawhorse bracket assembly for inter.- connecting acrosspiece and a pair of legs in converging relationship with each otherand to the crosspiece, comprising a pair ofseparate independentbrackets, each bracket including a main wall adapted to be fixedly se-.cured to one edge of the associated leg at one end thereof, an L-shapedstrap including a first flange adapted to be fixedly secured to theunderside of the crosspiece and a second flange substantiallyperpendicular to said first flange and extending away from the undersideof the crosspiece and substantially normal to the longitudinal axisthereof, said brackets and said strap being mutually overlapping andsaid brackets having aligned pivot apertures therethrough, a pivot pindisposed in said aligned pivot apertures and pivotally interconnectingsaid brackets to provide an axis for pivoting the legs between a foldedposition wherein the other ends thereof are adjacent to each other andan operative position wherein the other ends thereof are spaced apart,each of said brackets having a guide slot therein extending in adirection toward the crosspiece, said second flange of said strap havinga guide aperture therein in alignment with the guide slots in saidbrackets, a guide pin disposed in said aligned guide slots and guideaperture for interconnecting said brackets and said strap, each of saidbrackets having in the main wall thereof an L-shaped slot includingfirst and second arms, the first arm of each of said L-shaped slotsbeing arranged with the longitudinal axis thereof in alignment with saidthe other L-shaped slot when the legs are in the operative positionthereof, the second arm of each of said L-shaped slots being arranged atthe end of the associated first arm thereof disposed toward theorosspiece and extending therefrom toward the associated leg, and a lockpin disposed in said L-shaped slots and movable therealong in thealigned portions thereof between a locking position and a non-lockingposition as the legs move between the operative and folded positionsthereof, said lock pin in said locking position being disposed at theends of the aligned first arms disposed away from the crosspiece withthe legs in the operative position thereof and supporting the crosspiecethereupon, said lock pin in said non-locking position being disposed inaligned portions of said second arms with the legs in the foldedposition thereof.

6. A collapsible sawhorse bracket assembly for interconnecting acrosspiece and a pair of legs in converging relationship with each otherand to the crosspiece, comprising a pair of separate independentbrackets, each bracket including a main wall adapted to be fixedlysecured to one edge of the associated leg at one end thereof, anL-shaped strap including a first flange adapted to be fixedly secured tothe underside of the crosspiece and a second flange substantiallyperpendicular to said first flange and extending away from the undersideof the cross'piece and substantially normal to the longitudinal axisthereof, said brackets and said strap being mutually overlapping andsaid brackets'having aligned pivot apertures therethrough, a pivot pindisposed in said aligned pivot apertures and pivotally interconnectingsaid'brackets to provide an axis for pivoting the legs between a foldedposition wherein the other ends thereof are adjacent to each other andan operative position wherein the other ends thereof are spaced apart,each of said brackets having a guide slot therein extending in adirection toward the crosspiece, said second flange of said strap havinga guide aperture therein in alignment with the guide slots in saidbrackets, a guide pin disposed in said aligned guide slots and guideaperture for interconnecting said brackets and said strap, each of saidbrackets having in the main wall thereof an L-shaped slot includingfirst and second arms, the first arm of each of said L-shaped slotsbeing arranged with the longitudinal axis thereof in alignment with saidpivot apertures and in alignment with the first arm of the otherL-shaped slot when the legs are in the operative position thereof, thesecond arm of each of said L-shaped slots being arranged at the end ofthe associated first arm thereof disposed toward the crosspiecei andextending therefrom toward the associated leg, and a lock pin dis,-posed in said L -shaped slots and movable therea-long in the alignedportions thereof between a locking position and a non-locking positionas the legs move between the operative and folded positions thereof,said lock pin in said locking position being disposed at the ends of thealigned first arms disposed away from the crosspiece with the legs inthe operative position thereof and supporting the crosspiece thereupon,said lock pin in said non-locking position being disposed in alignedportions of said second arms with the legs in the folded positionthereof, and a stop flange on said strap engaging one of said plates forlimiting the pivotal'rnovement between said plates when thelegs aremoved to the operative position thereof.

References Cited in the file of this patent UNITED STATES PATENTS1,748,849 Schmidt Feb. 25, 1930 2,412,395 Goosman Dec. 10, 19462,555,503 Morton u- June'5, 1951 2,561,864 Hollywood July 24, 19512,829,012 Snyder Apr. 1, 1958 2,941,618 Larson June 21, 1960

1. A COLLAPISIBLE SAWHORSE BRACKET ASSEMBLY FOR INTERCONNECTING ACROSSPIECE AND A PAIR OF LEGS IN CONVERGING RELATIONSHIP WITH EACH OTHERAND TO THE CROSSPIECE, COMPRISING A PAIR OF SEPARATE INDEPENDENTBRACKETS, EACH BRACKET INCLUDING A MAIN WALL ADAPTED TO BE FIXEDLYSECURED TO ONE EDGE OF THE ASSOCIATED LEG AT ONE END THEREOF, MEANSINTERCONNECTING THE CROSSPIECE AND SAID BRACKETS, SAID BRACKETS BEINGMUTUALLY OVERLAPPING AND HAVING ALIGNED PIVOT APERTURES THERETHROUGH, APIVOT PIN DISPOSED IN SAID ALIGNED PIVOT APERTURES AND PIVOTALLYINTERCONNECTING SAID BRACKETS TO PROVIDE AN AXIS FOR PIVOTING THE LEGSBETWEEN A FOLDED POSITION WHEREIN THE OTHER ENDS THEREOF ARE ADJACENT TOEACH OTHER AND AN OPERATIVE POSITION WHEREIN THE OTHER ENDS THEREOF ARESPACED APART, EACH OF SAID BRACKETS HAVING IN THE MAIN WALL THEREOF ANL-SHAPED SLOT INCLUDING FIRST AND SECOND ARMS, THE FIRST ARM OF EACH OFSAID L-SHAPED SLOTS BEING ARRANGED WITH THE LONGITUDINAL AXIS THEREOF INALIGNMENT WITH SAID PIVOT APERTURES AND IN ALIGNMENT WITH THE FIRST ARMOF THE OTHER L-SHAPED SLOT